16 DESCRIPTIONS OP NEW SPECIES. 



EUR1TRH IllS LEC. 



49. K. flebilis. Oblongus, nigro-piceus subnitidus, thorace latitudine 

 plus sesqui breviore antice posticeque aequaliter angustato, lateribus ro- 

 tandatis postice obliquis, angulis posticis obtusis baud rotundatis, ad 

 basin utrinque leviter impresso, elytris thorace paulo latioribus, tenuiter 

 striatis, stria 2nda postice unipunctata ; anteunis palpis pedibusque 

 piceo-rufis. Long. -35 '40. 



Cape San Lucas, Lower California ; Mr. Xantus. Quite dis- 

 tinct from our other species by the form of the thorax ; the sides 

 behind are scarcely perceptibly flattened. 



GYNANDROTARSITS FERT& 



50. Gr. opaculus. Oblongo-ovalis fere depressus, niger, thorace lati- 

 tudine breviore antice paulo angustato, lateribus late rotundatis postice 

 paulo explanatis, angulis posticis rotundatis, elytris opacis, apice vix 

 sinuatis, interstitiis 3io 5to et 7mo postice punctis pluribus impresso. 

 Long. -48. 



One female, from Texas ; Mr. Ulke. This species resembles to 

 a remarkable degree Anisodactylus ellipticus, but is less convex 

 and less shining ; the first joint of the front tarsi is longer than the 

 two following, which are equal in size, and about twice their width ; 

 the terminal spur of the anterior tibiae is broken, but is evidently 

 dilated into a large tooth on the outer side, but whether there is 

 a corresponding tooth on the inner margin I cannot determine. 

 The first joint of the front tarsi does not extend under the second 

 as in G. harpaloides. 



The last named species has a very extensive range ; a female 

 was collected by Mr. Kennicott, on the Red River of the North, 

 and a male was given me by Dr. Schaum, as found in Louisiana ; 

 the latter can in no respect be separated from Anisodactylus ; the 

 middle and front tarsi are broadly dilated, and covered with a 

 dense brush of hairs beneath, and the first joint is much narrower 

 than the others ; the terminal spur of the front tibiae is tricuspid. 



BRADYCELLUS KB. 



51. B. linearis. Valde elongatus, nigro-piceus, pernitidus, thorace 

 latitudine multo longiore, postice angustato, lateribus postice subsinu- 

 atis, angulis posticis rectis, apice et basi indeterminate rufescente et 

 parce punctato, linea dorsali profunda, postice utrinque profunde im- 

 presso, elytris parallelis thorace paulo latioribus, sutura rufescente, 



